Sparking-plug for internal-combustion engines.



W. H. BURNER SPARKING PLUG r011 INTERNAL COMBUSTION ENGINES.

APPLIoA rIon FILED nov. 30, 1909.

Patented July 5, 1910.

Y IIIIIEIITOR, Wmf/zeg 7 mourns WILLIAM. H. HORNER, 0F WILLIAMS BRIDGE,NEW YORK.

SPARRING-PLUG FOB INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

-atentod July 5, 1910.

Application filed November 30, 1909. Serial No. 530,539.

lb all whom it may concern:

Be it known that I, VILLIAM H. IIORNER, a citizen of the United States,and residing at Williams Bridge, in the county of New York and State ofNew Yor have invented certain new and useful Improvements in Sparking-Plugs for Internal- Combustion Engines, of which the following is aspecification, such as will enable those skilled in the art to which itappertains to make and use the same.

This invention relates to electric sparking plugs or devices for use inconnection with internal combustion engines, and one of the objectsthereof is to provide a device of this class which will not becomeclogged or fouled with carbon and which will be selfcleaning at thecontacts; a further object being to provide a device of the class specifled the moving parts of which are entirely within the plug; and withthese and other objects in View the invention consists in a device ofthe class specified, constructed as hereinafter described and claimed.

The invention is fully disclosed in the following specification of whichthe accompanying drawing forms a part, said drawing being a sectionalview of'a part of a cylinder of an internal combustion engine andshowing also my improved sparking device or plug also in section.

In the drawing forming part of this specification I have shown at a apart of a cylinder of an internal combustion engine, and in the practiceof my invention I provide a sparking plug or device 5 which comprises atube 11 one end of which is screw threaded as shown at b" and adapted tobe screwed into an aperture or opening a in the cylinder 02, and thetube I) is of standard dimensions as is also the threaded aperture ofthe cylinder a.

The outer end of the tube If is closed, in the form of constructionshown, by means of a threaded cap I), and in practice I form in one sideof the tube IF and centrally thereof on opening or aperture r; the outerwalls of which are countersunk, and coumeet with said tube oneloct'rrunugllot (Z having a. core or! provided with a reduced screwthreaded extension (5" which is passed through the opening: or aperture0 and said core is also provided with a beveled shoulder (1, andl'mlwcou the adjacent end of the magnet, the shoulder r1". and thercduced and threaded extension (1 of the core of the magnet, and theside of the tube 12 is )laced an insulating packing: a.

Vithiu the tube 3) is placed a U-shaped spring f having a longer :mu fand a shorter arm and the threaded extension 6' of the core of themagnet (l passes through the shorter arm of said spring, and betweensaid spring and the side of the tube 5 is placed an insulating packingc'-', and the insulating packiugs c and c securely insulate the magnetd, the core 71* thereof and the spring f from the tube b. A not g isscrewed onto the reduced extension (i of the core (Z of the magnet d,and this nut securely binds the tube 5 the magnet and the spring ftogetheer, and also securely presses and binds the insulating packings cand c and this serves to prevent the escape or blow off of gases throughthe tube b or the connection of the magnet cl therewith The longer arm fof the spring 1 is provided centrally with an arnulture h and said armis provided at its end or adjacent thereto with a contact device i and asimilar contact device a? is connected with the inner end portion of thetube 31" as clearly shown in the drawing. I have also shown at anordinary battery which is connected with the magnet d by a. wire 3'" andat is a circuit. closer or timer which is connected with the battery jby a Wire 111 and with the cylinder a by another wire 1: and it will beunderstood that the spring f is in electrical connection with the core Jof the magnet d.

The operation will be similar to that of other devices and will. bereadily understood from the foregoing description when taken inconnection with the accompanying drawing and the followil'lgstatementthereof. The position of the parts shown in ihcdraw' ing istheir normal. position, and in this position of said parts the contactdevices i and '5 are in connection. If now the cylinder 11 is suppliedwith :1 charge of Fuel, and at the proper instant the circuit closer ortimer is revolves to a position which closes the hal tory circuit thecurrent from the battery will flow through the magnet- (Z and the springf and through the \'liuder a, the wire in, lhe circuit ('lHSOl' or timerl: and the wire A" back to the butter and this energizes the nuignet (Zand draws the arm 1'' ol the spring 1 inwardly and semi-ales the contactderives a'zmd I, and a spark is formed in the usual manner, and us thecircuit closer or thuer k continues to turn the circuit is broken andthe arm 1 of the spring J moves back In the position shown in the rowingand this make and break of the circuit and the con sequent formation ofthe spark are continued as long as the apparatus is in operation, andthe making and breaking of the clrcult and the formation of said sparkare timed by the circuit closer or timer k, and t-lllS operation will berepeated for every cycle of the eninc.

\Vith my improvement there is considerable movement of the spring arm f"and by reason of this fact the distance between the contacts 71 and '2is greater than is ordinary in this class of devices, and by reason ofthis construction the said contactswili be prevented from becomingclogged with carbon and will be kept clean at a 1 times.

Bv means of my improvement but one circiiit wire is necessary and thetube I) has but one electrical connection, and by placing the magnet 03at the side of said tube the power necessary for operating the arm ofthe spring f is much less than would e necessary, and the OPeIZI-tIOWOI:said arm is also made more positive and direct.

Having fully described my invention what I claim as new, and desire tosecure by Let ters Patent, is

1. A device of the class described, comprising a tubular plug, one endof which is closed and the other open and provided with a contactdevice, a magnet at one side of said plu and the core of which passesthereinto, said magnet and said core being insulated from said tube, aU-shaped spring placed in said tube and insulated therefrom, one arm ofsaid spring being secured to the core of the magnet and the other armbeing provided with a contact device.

2. A device of the class described, comprising a tubular plug, one cudof which is closed and the other open, the open end of said plug beingadapted to be secured in the cylinder of an engine and being providedwith a contact device, and an electromagnet connected with one side ofsaid plug and the core of which passes thcreinto, said ma net and saidcore being insulated from said plug, and a U-shaped spring placed insaid plug and comprising shorter and longer arms, the shorter arm beinconnected with the core of the magnet an the longer arm extending in thedirection of the open end of said plug and being provided with a contactdevice.

3. A device of the class described, comprising a tubular plug, one endof which is closed and the other open, the open end of said plug beingadapted to be secured in the cylinder of an engine and being providedwith a contact device, and an electromagnet connected with one side ofsaid plug and the core of which passes thereinto, said magnet and saidcore being insulated from said plug, and a U-shaped spring placed insaid plug and comprising shorter and longer arms, the shorter arm beingconnected with the core of the magnet and the longer arm extendin in thedirection of the open end of said p ug and being provided with acontact'device, and being also provided with an armature.

In testimony that I claim the foregoing as my invention I have signed myname in presence of the subscribing witnesses this 27th day of November1909.

WILLIAM H. HORNER.

Witnesses:

C. E. MULJIEANY, B. M. Rrnason.

